Why can't I install Kotoba Boost?

The installation of Kotoba Boost may fail because of the lack of device storage, poor network connection, or the compatibility of your Android device. Therefore, please check the minimum requirements first to make sure Kotoba Boost is compatible with your phone.

How to check if Kotoba Boost is safe to download?

Kotoba Boost is safe to download on APKPure, as it has a trusted and verified digital signature from its developer.

How to download Kotoba Boost old versions?

APKPure provides the latest version and all the older versions of Kotoba Boost. You can download any version you want from here: All Versions of Kotoba Boost

What's the file size of Kotoba Boost?

Kotoba Boost takes up around 30.6 MB of storage. It's recommended to download APKPure App to install Kotoba Boost successfully on your mobile device with faster speed.

Kotoba Boost

1K+

Lusil
Aug 19, 2025

What's New in the Latest Version 2.1.3

Aug 19, 2025

★ Ability to force update decks from settings.
★ Minor bug and typo fixes.

APK Info

Package Name
net.lusil.kotobaboost
File Format
XAPK
Android OS
Android 5.0+ (Lollipop, API 21)
Architecture
universal
Content Rating
Everyone
Signature
6616ebcdc2e9cff2a76c124ab3f5a557558fea96
Feedback
Flag as inappropriate
Feedback
Package Name
net.lusil.kotobaboost
Your name
Your email
Reason for reporting
Any other things you wanna tell us?
Verification code